Table 4

Independent predictors of stroke (odds ratio with 95% CI between parentheses)

PredictorModel 1 Patient historyModel 2 Patient history + blood pressureModel 3 Patient history + blood pressure + fibrinogen
ROC area = area under receiver operating characteristic curve.
Age (per year)1.02 (1.00 to 1.04)1.03 (1.01 to 1.05)1.03 (1.01 to 1.05)
History of stroke7.68 (3.21 to 18.40)7.67 (3.19 to 18.41)7.46 (3.10 to 17.92)
Diabetes2.2 1 (1.11 to 4.43)2.38 (1.18 to 4.78)2.38 (1.18 to 4.80)
Current smoking1.67 (1.18 to 2.36)1.69 (1.19 to 2.39)1.57 (1.10 to 2.24)
History of hypertension1.58 (1.03 to 2.43)1.43 (0.92 to 2.20)1.41 (0.91 to 2.18)
Diastolic blood pressure (per mm Hg)1.02 (1.01 to 1.04)1.02 (1.01 to 1.04)
Fibrinogen level (per g/l)1.16 (0.98 to 1.38)
ROC area (95% CI)0.66 (0.62 to 0.70)0.69 (0.64 to 0.73)0.70 (0.65 to 0.75)